A Beidou gnss monitoring system layout method based on slope stability analysis

Abstract

The invention discloses a method for laying out a Beidou GNSS monitoring system based on slope stability analysis, comprising: establishing a three-dimensional geological model of the slope through oblique photography and dividing a typical two-dimensional section to establish a two-dimensional analysis model; obtaining the rock and soil of the slope The physical and mechanical parameters of the body; the numerical analysis method is used to calculate the slope stability of the two-dimensional analysis model under extreme conditions, and the dangerous sliding surface is obtained; taking the obtained sliding surface as a reference, the leading edge of the landslide is cut and the trailing edge is pulled The fissure zone is projected to the corresponding position of the three-dimensional geological model to form a dangerous sliding surface projection line from the trailing edge to the leading edge of the landslide, and the Beidou GNSS monitoring instrument is arranged to form a monitoring area; different profile lines are selected, and the above steps are repeated. The Beidou GNSS monitoring instruments are deployed to form multiple monitoring areas. The present invention realizes the deployment of the monitoring network; realizes 360° no dead angle detection in the field, and has strong applicability; combines numerical simulation with engineering practice, and improves the monitoring work efficiency.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering, in particular to a method for laying out a Beidou GNSS monitoring system based on slope stability analysis. Background technique [0002] Slope stability is the first prerequisite for open-pit operations such as mining, and it is also an important topic of research in geotechnical engineering fields such as dam construction and roadbed engineering. The stability of the slope is not only affected by the mechanical strength of the rock and soil itself, but also includes extreme conditions such as heavy rain and earthquakes. Once the slope becomes unstable, it will cause unpredictable consequences. Therefore, it is of great engineering significance to accurately predict slope instability. [0003] At present, the most commonly used forecasting method is to deploy monitoring devices on the slope, and accurately predict the stability of the slope by monitoring the deformation of the ...

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Problems solved by technology

[0004] In order to solve the deficiencies in the prior art, the present invention will solve the problem that the monitoring items in the slope monitoring in the prior art are single and cannot be combined with each other to analyze the disadvantages of the slope deformation

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